<template>
  <BasicMenuItem v-if="!menuHasChildren(item) && getShowMenu" v-bind="$props" />
  <SubMenu
    v-if="menuHasChildren(item) && getShowMenu"
    :class="[theme]"
    :key="`submenu-${item.path}`"
    popup-class-name="app-top-menu-popup"
  >
    <template #title>
      <MenuItemContent v-bind="$props" :item="item" />
    </template>

    <template v-for="childrenItem in item.children || []" :key="childrenItem.path">
      <BasicSubMenuItem v-bind="$props" :item="childrenItem" />
    </template>
  </SubMenu>
</template>
<script lang="ts">
  import type { Menu as MenuType } from "@mfish/core/router";
  import { computed, defineComponent } from "vue";
  import { Menu } from "ant-design-vue";
  import { useDesign } from "@mfish/core/hooks";
  import { itemProps } from "../Props";
  import BasicMenuItem from "./BasicMenuItem.vue";
  import MenuItemContent from "./MenuItemContent.vue";

  export default defineComponent({
    name: "BasicSubMenuItem",
    isSubMenu: true,
    components: {
      BasicMenuItem,
      SubMenu: Menu.SubMenu,
      MenuItemContent
    },
    props: itemProps,
    setup(props) {
      const { prefixCls } = useDesign("basic-menu-item");

      const getShowMenu = computed(() => !props.item.meta?.hideMenu);

      function menuHasChildren(menuTreeItem: MenuType): boolean {
        return (
          !menuTreeItem.meta?.hideChildrenInMenu &&
          Reflect.has(menuTreeItem, "children") &&
          !!menuTreeItem.children &&
          menuTreeItem.children.length > 0
        );
      }

      return {
        prefixCls,
        menuHasChildren,
        getShowMenu
      };
    }
  });
</script>
